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← The Magic of Reality - paperback release June 21

memetical's Avatar Jump to comment 3 by memetical

Dear Prof D, I hope they corrected that prism perspective error on page150? (Prof D,"What prism error?") Actually, I think the slit card is at the wrong angle. The slit should be rotated 90 deg - in the vertical position - to allow ONLY red light thru! (Prof D, "Oh God, so it is.") Me thinks Sir Isaac is turning 'redfaced' under his apple tree. A pair of grey herons gently glided over my very green cricket square today. No blue skies yet.

Mon, 11 Jun 2012 23:35:46 UTC | #946954